22'33'44'6-Heptachlorobiphenyl
City of Santa Rosa
8
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-03-19 | AE18950 | ND |
| 2019-03-25 | AE59850 | ND |
| 2020-03-19 | AF03895 | ND |
| 2021-05-10 | AF53096 | ND |
| 2021-09-22 | AF70891 | ND |
| 2022-01-31 | AF82686 | ND |
| 2022-04-13 | AF93444 | ND |
| 2023-07-19 | AG49453 | ND |